Europe’s crisis has entered a quiet phase, which is no accident. The current period of relative calm coincides with the approach of Germany’s federal election in 2013, in which the incumbent chancellor, Angela Merkel, will be running as the woman who saved the euro.

But the crisis will be back, if not before Germany’s upcoming election, then after. Southern Europe has not done enough to enhance its competitiveness, while northern Europe has not done enough to boost demand. Debt burdens remain crushing, and Europe’s economy remains unable to grow. Across the continent, political divisions are deepening. For all of these reasons, the specter of a eurozone collapse has not been dispatched.

The consequences of a collapse would not be pretty. Whichever country precipitated it – Germany by threatening to abandon the euro, or Greece or Spain by actually doing so – would trigger economic chaos and incur its neighbours’ wrath. To protect themselves from the financial fallout, governments would invoke obscure clauses in EU treaties in order to slap temporary controls on capital flows and ring-fence their banking systems. They would close their borders to stem capital flight. It would be each country for itself.